Engine having multi flow rate control valve

摘要

An engine having a multi flow rate control valve may include a valve, a valve housing and a driving unit. The valve may have a hollow pipe structure and coolant holes through which a coolant supplied to a space at a center portion of the valve is to be distributed and cooled outside of the valve. The valve housing may be coupled with the valve such that an inner side of the valve housing is capable of being in close contact with an outer side of the valve, and have coolant outlets formed at positions corresponding to the coolant holes. The driving unit may rotate the valve to selectively connect the respective coolant holes to the corresponding coolant outlets or close the coolant holes by bringing them in close contact with the inner side of the valve housing.

主权项

1. An engine having a multi flow rate control valve, comprising:
a valve having a hollow pipe structure and coolant holes through which a coolant supplied to a space at a center portion of the valve is to be distributed and cooled outside of the valve; a valve housing coupled with the valve such that an inner side of the valve housing is capable of being in close contact with an outer side of the valve, and the valve housing having coolant outlets formed at positions corresponding to the coolant holes; a driving unit for rotating the valve to selectively connect the respective coolant holes to the corresponding coolant outlets or close the coolant holes by bringing them in close contact with the inner side of the valve housing; and an insert having a pipe structure corresponding to the valve, disposed between the valve housing and the valve, fixed to the valve housing, and having a passage through which the coolant flows to one or more of the coolant outlets from the center portion of the valve, wherein protrusions that protrude toward the insert and fix the insert are formed on the inner side of the valve housing.